I am running 275 20" Pirellis Scorpion all around. I heard the 275s are hard to come by. You may have to look at Blizzaks.

I have run-flats because I do a lot of driving in the middle of Wisconsin. But I do like the ride of the non-runflat better. I just don't want to be stuck having to wait for a truck to flatbed me to a station. The next problem with be having to over night a tire because no one around here would carry one of these.
M